I have to say seajay's comments in another thread about giving aero a chance persuaded me. I had been wanting new wheels and when I saw the 101s on sale, all it took was a nudge from a friend ("you won't regret it") and those wheels were mine before anyone took them. So, this experience has reinforced my impression that I really do not know what I want or need in terms of bike components ... I just need to ride many more thousands of miles and experience different components. So far, upgrading stuff has made a huge difference to me. Even the Aksiums were an upgrade on my old bike, when the stock wheels started to fail.